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Finding the Fourth Proportional to 124,018.79, 171,142.79 and 70,303.80

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Solution

The fourth proportional to 124,018.79, 171,142.79 and 70,303.80 is: 97,017.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,018.79 : 171,142.79 = 70,303.80 : x
  2. Step 2: Convert to fraction form
    124,018.79/171,142.79 = 70,303.80/x
  3. Step 3: Cross multiply
    124,018.79x = 171,142.79 × 70,303.80
  4. Step 4: Simplify right side
    124,018.79x = 12,031,988,128.08
  5. Step 5: Solve for x
    x = 12,031,988,128.08/124,018.79
  6. Step 6: Final answer
    x = 97,017.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.